Loudspeaker



FIG. 1 is a front-top-left perspective view of a loudspeaker showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The broken lines are for the purpose of illustrating a portion of the loudspeaker that forms no part of the claimed design. 

CLAIM The ornamental design for a loudspeaker, as shown and described. 